diff --git a/Cargo.lock b/Cargo.lock
index d6d05d50b7..e6870b620e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -890,9 +890,9 @@ dependencies = [
 
 [[package]]
 name = "crc32fast"
-version = "1.3.1"
+version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2209c310e29876f7f0b2721e7e26b84aff178aa3da5d091f9bfbf47669e60e3"
+checksum = "b540bd8bc810d3885c6ea91e2018302f68baba2129ab3e88f32389ee9370880d"
 dependencies = [
  "cfg-if 1.0.0",
 ]
@@ -2462,7 +2462,7 @@ dependencies = [
  "typed-bytes",
  "url",
  "warp",
- "zip",
+ "zip 0.5.13",
 ]
 
 [[package]]
@@ -2553,7 +2553,7 @@ dependencies = [
 [[package]]
 name = "jortestkit"
 version = "0.1.0"
-source = "git+https://github.com/input-output-hk/jortestkit.git?branch=master#51f92676429a2e8cd72ee1907195c565824b52d4"
+source = "git+https://github.com/input-output-hk/jortestkit.git?branch=master#4907ed1f3f0a341158ca4e53d967c78b86cd00fa"
 dependencies = [
  "assert_fs",
  "base64",
@@ -2573,7 +2573,7 @@ dependencies = [
  "predicates",
  "rand 0.8.4",
  "rand_chacha 0.3.1",
- "rand_core 0.5.1",
+ "rand_core 0.6.3",
  "rayon",
  "reqwest",
  "semver",
@@ -2589,7 +2589,7 @@ dependencies = [
  "time 0.3.7",
  "tokio",
  "warp",
- "zip",
+ "zip 0.6.0",
 ]
 
 [[package]]
@@ -5682,6 +5682,16 @@ dependencies = [
  "time 0.1.44",
 ]
 
+[[package]]
+name = "zip"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6fa4aa90e99fb8d701bda16fb040d8ed2f9c7176fb44de750e880a74b580315"
+dependencies = [
+ "byteorder",
+ "crc32fast",
+]
+
 [[package]]
 name = "zipkin"
 version = "0.4.2"
diff --git a/testing/jormungandr-automation/src/jcli/api/certificate.rs b/testing/jormungandr-automation/src/jcli/api/certificate.rs
index dc5da72967..c7d2ee0e3e 100644
--- a/testing/jormungandr-automation/src/jcli/api/certificate.rs
+++ b/testing/jormungandr-automation/src/jcli/api/certificate.rs
@@ -3,8 +3,7 @@ use assert_cmd::assert::OutputAssertExt;
 use assert_fs::{prelude::*, NamedTempFile};
 use chain_impl_mockchain::vote::Choice;
 use jormungandr_lib::interfaces::TaxType;
-use jortestkit::file;
-use jortestkit::process::output_extensions::ProcessOutput;
+use jortestkit::{file, process::output_extensions::ProcessOutput};
 use std::path::Path;
 
 #[derive(Debug)]
@@ -156,7 +155,7 @@ impl Certificate {
             .as_single_line()
     }
 
-    pub fn stake_pool_id<P: AsRef<Path>>(self, input_file: P) -> String {
+    pub fn stake_pool_id<P: AsRef<Path>>(self, input_file: P) -> Result<String, std::io::Error> {
         println!("Running get stake pool id...");
         let temp_file = NamedTempFile::new("stake_pool.id").unwrap();
         self.command
@@ -168,7 +167,7 @@ impl Certificate {
         file::read_file(temp_file.path())
     }
 
-    pub fn vote_plan_id<S: Into<String>>(self, cert: S) -> String {
+    pub fn vote_plan_id<S: Into<String>>(self, cert: S) -> Result<String, std::io::Error> {
         println!("Running get stake pool id...");
         let input_file = NamedTempFile::new("cert_file").unwrap();
         input_file.write_str(&cert.into()).unwrap();
diff --git a/testing/jormungandr-automation/src/jcli/api/votes/committee/communication_key.rs b/testing/jormungandr-automation/src/jcli/api/votes/committee/communication_key.rs
index 8a716ff05b..3fdc483cc5 100644
--- a/testing/jormungandr-automation/src/jcli/api/votes/committee/communication_key.rs
+++ b/testing/jormungandr-automation/src/jcli/api/votes/committee/communication_key.rs
@@ -24,7 +24,7 @@ impl CommunicationKey {
     }
 
     #[allow(clippy::wrong_self_convention)]
-    pub fn to_public(self, input: String) -> String {
+    pub fn to_public(self, input: String) -> Result<String, std::io::Error> {
         let input_file = NamedTempFile::new("input.tmp").unwrap();
         input_file.write_str(&input).unwrap();
         let output_file = NamedTempFile::new("output.tmp").unwrap();
diff --git a/testing/jormungandr-automation/src/jcli/api/votes/committee/member_key.rs b/testing/jormungandr-automation/src/jcli/api/votes/committee/member_key.rs
index e58b341c73..684efcf6fa 100644
--- a/testing/jormungandr-automation/src/jcli/api/votes/committee/member_key.rs
+++ b/testing/jormungandr-automation/src/jcli/api/votes/committee/member_key.rs
@@ -16,7 +16,10 @@ impl MemberKey {
     }
 
     #[allow(clippy::wrong_self_convention)]
-    pub fn to_public<S: Into<String>>(self, member_secret_key: S) -> String {
+    pub fn to_public<S: Into<String>>(
+        self,
+        member_secret_key: S,
+    ) -> Result<String, std::io::Error> {
         let input_file = NamedTempFile::new("member_key.tmp").unwrap();
         input_file.write_str(&member_secret_key.into()).unwrap();
 
diff --git a/testing/jormungandr-automation/src/jcli/api/votes/mod.rs b/testing/jormungandr-automation/src/jcli/api/votes/mod.rs
index e10af45a0e..733064bbd6 100644
--- a/testing/jormungandr-automation/src/jcli/api/votes/mod.rs
+++ b/testing/jormungandr-automation/src/jcli/api/votes/mod.rs
@@ -29,7 +29,10 @@ impl Votes {
         Crs::new(self.votes_command.crs())
     }
 
-    pub fn election_public_key<S: Into<String>>(self, member_key: S) -> String {
+    pub fn election_public_key<S: Into<String>>(
+        self,
+        member_key: S,
+    ) -> Result<String, std::io::Error> {
         let output_file = NamedTempFile::new("election_public_key.tmp").unwrap();
         self.votes_command
             .election_public_key(member_key, output_file.path())
diff --git a/testing/jormungandr-automation/src/jcli/services/certificate_builder.rs b/testing/jormungandr-automation/src/jcli/services/certificate_builder.rs
index a2424c1bd1..875bfc48e1 100644
--- a/testing/jormungandr-automation/src/jcli/services/certificate_builder.rs
+++ b/testing/jormungandr-automation/src/jcli/services/certificate_builder.rs
@@ -24,7 +24,7 @@ impl CertificateBuilder {
         stake_pool_id: &str,
         stake_key_pub: &str,
         stake_key_file: &Path,
-    ) -> String {
+    ) -> Result<String, std::io::Error> {
         let temp_dir = TempDir::new().unwrap();
 
         let stake_delegation_cert = self
diff --git a/testing/jormungandr-automation/src/jormungandr/explorer/mod.rs b/testing/jormungandr-automation/src/jormungandr/explorer/mod.rs
index 36559fc953..b69d644b91 100644
--- a/testing/jormungandr-automation/src/jormungandr/explorer/mod.rs
+++ b/testing/jormungandr-automation/src/jormungandr/explorer/mod.rs
@@ -299,8 +299,8 @@ pub fn compare_schema<P: AsRef<Path>>(actual_schema_path: P) {
         PathBuf::from_str("./jormungandr-automation/resources/explorer/graphql/schema.graphql")
             .unwrap();
 
-    if !file::have_the_same_content(actual_schema_path.as_ref(), &expected_schema_path) {
-        file::copy_file(actual_schema_path.as_ref(), &expected_schema_path, true);
+    if !file::have_the_same_content(actual_schema_path.as_ref(), &expected_schema_path).unwrap() {
+        file::copy_file(actual_schema_path.as_ref(), &expected_schema_path, true).unwrap();
         println!("discrepancies detected, already replaced file with new content. Please commit to update schema");
     }
 }
diff --git a/testing/jormungandr-automation/src/jormungandr/legacy/mod.rs b/testing/jormungandr-automation/src/jormungandr/legacy/mod.rs
index 6a614d5f6c..e1e4e9ef6c 100644
--- a/testing/jormungandr-automation/src/jormungandr/legacy/mod.rs
+++ b/testing/jormungandr-automation/src/jormungandr/legacy/mod.rs
@@ -52,5 +52,7 @@ pub fn get_jormungandr_bin(release: &Release, temp_dir: &impl PathChild) -> Path
     let release_dir = temp_dir.child(format!("release-{}", release.version()));
     release_dir.create_dir_all().unwrap();
     decompress(output.path(), release_dir.path()).unwrap();
-    file::find_file(release_dir.path(), "jormungandr").unwrap()
+    file::find_file(release_dir.path(), "jormungandr")
+        .unwrap()
+        .unwrap()
 }
diff --git a/testing/jormungandr-automation/src/jormungandr/remote.rs b/testing/jormungandr-automation/src/jormungandr/remote.rs
index 4fcdb1d32a..6709814860 100644
--- a/testing/jormungandr-automation/src/jormungandr/remote.rs
+++ b/testing/jormungandr-automation/src/jormungandr/remote.rs
@@ -211,7 +211,7 @@ impl RemoteJormungandrBuilder {
 
     pub fn with_node_config(mut self, node_config: PathBuf) -> Self {
         self.node_config =
-            Some(serde_yaml::from_str(&jortestkit::file::read_file(node_config)).unwrap());
+            Some(serde_yaml::from_str(&jortestkit::file::read_file(node_config).unwrap()).unwrap());
         self
     }
 
diff --git a/testing/jormungandr-integration-tests/src/jcli/certificate/e2e.rs b/testing/jormungandr-integration-tests/src/jcli/certificate/e2e.rs
index 4f22044e88..438617c6eb 100644
--- a/testing/jormungandr-integration-tests/src/jcli/certificate/e2e.rs
+++ b/testing/jormungandr-integration-tests/src/jcli/certificate/e2e.rs
@@ -25,7 +25,7 @@ pub fn test_create_and_sign_new_stake_delegation() {
 
     let input_file = temp_dir.child("certificate");
     input_file.write_str(&certificate).unwrap();
-    let stake_pool_id = jcli.certificate().stake_pool_id(input_file.path());
+    let stake_pool_id = jcli.certificate().stake_pool_id(input_file.path()).unwrap();
     let certificate = jcli
         .certificate()
         .new_stake_delegation(&stake_pool_id, &owner.identifier().to_bech32_str());
diff --git a/testing/jormungandr-integration-tests/src/jcli/certificate/retirement.rs b/testing/jormungandr-integration-tests/src/jcli/certificate/retirement.rs
index 16b6b3627d..9715e15136 100644
--- a/testing/jormungandr-integration-tests/src/jcli/certificate/retirement.rs
+++ b/testing/jormungandr-integration-tests/src/jcli/certificate/retirement.rs
@@ -30,7 +30,7 @@ pub fn jcli_creates_correct_retirement_certificate() {
 
     let input_file = temp_dir.child("certificate");
     input_file.write_str(&certificate).unwrap();
-    let stake_pool_id = jcli.certificate().stake_pool_id(input_file.path());
+    let stake_pool_id = jcli.certificate().stake_pool_id(input_file.path()).unwrap();
 
     let expected_certificate = jcli.certificate().new_stake_pool_retirement(&stake_pool_id);
     let actual_certificate = assert_new_stake_pool_retirement(&stake_pool_id);
@@ -38,7 +38,8 @@ pub fn jcli_creates_correct_retirement_certificate() {
     retirement_cert_file.write_str(&actual_certificate).unwrap();
     let stake_pool_id_from_retirement = jcli
         .certificate()
-        .stake_pool_id(retirement_cert_file.path());
+        .stake_pool_id(retirement_cert_file.path())
+        .unwrap();
     assert_eq!(expected_certificate, actual_certificate);
     assert_eq!(stake_pool_id, stake_pool_id_from_retirement);
 }
diff --git a/testing/jormungandr-integration-tests/src/jormungandr/genesis/stake_pool.rs b/testing/jormungandr-integration-tests/src/jormungandr/genesis/stake_pool.rs
index b966f55aca..c8e7f61641 100644
--- a/testing/jormungandr-integration-tests/src/jormungandr/genesis/stake_pool.rs
+++ b/testing/jormungandr-integration-tests/src/jormungandr/genesis/stake_pool.rs
@@ -118,7 +118,8 @@ pub fn create_new_stake_pool(
 
     let stake_pool_id = jcli
         .certificate()
-        .stake_pool_id(stake_pool_certificate_file.path());
+        .stake_pool_id(stake_pool_certificate_file.path())
+        .unwrap();
 
     assert!(
         jcli.rest()
diff --git a/testing/jormungandr-integration-tests/src/jormungandr/vit/private.rs b/testing/jormungandr-integration-tests/src/jormungandr/vit/private.rs
index b5a621dd78..85832428ec 100644
--- a/testing/jormungandr-integration-tests/src/jormungandr/vit/private.rs
+++ b/testing/jormungandr-integration-tests/src/jormungandr/vit/private.rs
@@ -41,7 +41,8 @@ pub fn jcli_e2e_flow_private_vote() {
         .votes()
         .committee()
         .communication_key()
-        .to_public(communication_sk);
+        .to_public(communication_sk)
+        .unwrap();
     let crs = "Committee member crs";
     let member_sk =
         jcli.votes()
@@ -52,8 +53,9 @@ pub fn jcli_e2e_flow_private_vote() {
         .votes()
         .committee()
         .member_key()
-        .to_public(member_sk.clone());
-    let election_public_key = jcli.votes().election_public_key(member_pk.clone());
+        .to_public(member_sk.clone())
+        .unwrap();
+    let election_public_key = jcli.votes().election_public_key(member_pk.clone()).unwrap();
 
     let member_sk_file = NamedTempFile::new("member.sk").unwrap();
     member_sk_file.write_str(&member_sk).unwrap();
@@ -134,7 +136,7 @@ pub fn jcli_e2e_flow_private_vote() {
 
     time::wait_for_epoch(1, jormungandr.rest());
 
-    let vote_plan_id = jcli.certificate().vote_plan_id(&vote_plan_cert);
+    let vote_plan_id = jcli.certificate().vote_plan_id(&vote_plan_cert).unwrap();
     let yes_vote_cast = jcli.certificate().new_private_vote_cast(
         vote_plan_id.clone(),
         0,
@@ -278,7 +280,8 @@ pub fn jcli_private_vote_invalid_proof() {
         .votes()
         .committee()
         .communication_key()
-        .to_public(communication_sk);
+        .to_public(communication_sk)
+        .unwrap();
     let crs = "Committee member crs";
 
     let invald_crs = "Invalid Committee member crs";
@@ -292,7 +295,8 @@ pub fn jcli_private_vote_invalid_proof() {
         .votes()
         .committee()
         .member_key()
-        .to_public(member_sk.clone());
+        .to_public(member_sk.clone())
+        .unwrap();
 
     let member_sk_file = NamedTempFile::new("member.sk").unwrap();
     member_sk_file.write_str(&member_sk).unwrap();
@@ -373,7 +377,7 @@ pub fn jcli_private_vote_invalid_proof() {
         jormungandr.rest(),
     );
 
-    let vote_plan_id = jcli.certificate().vote_plan_id(&vote_plan_cert);
+    let vote_plan_id = jcli.certificate().vote_plan_id(&vote_plan_cert).unwrap();
 
     jcli.fragment_sender(&jormungandr)
         .send(&tx)
diff --git a/testing/jormungandr-integration-tests/src/jormungandr/vit/public.rs b/testing/jormungandr-integration-tests/src/jormungandr/vit/public.rs
index d6895dc754..bf574d07ad 100644
--- a/testing/jormungandr-integration-tests/src/jormungandr/vit/public.rs
+++ b/testing/jormungandr-integration-tests/src/jormungandr/vit/public.rs
@@ -569,7 +569,7 @@ pub fn jcli_e2e_flow() {
 
     time::wait_for_epoch(1, jormungandr.rest());
 
-    let vote_plan_id = jcli.certificate().vote_plan_id(&vote_plan_cert);
+    let vote_plan_id = jcli.certificate().vote_plan_id(&vote_plan_cert).unwrap();
     let vote_cast = jcli
         .certificate()
         .new_public_vote_cast(vote_plan_id.clone(), 0, yes_choice);
diff --git a/testing/mjolnir/src/mjolnir_lib/bootstrap/scenario/mod.rs b/testing/mjolnir/src/mjolnir_lib/bootstrap/scenario/mod.rs
index 23b6503c14..1a529d7253 100644
--- a/testing/mjolnir/src/mjolnir_lib/bootstrap/scenario/mod.rs
+++ b/testing/mjolnir/src/mjolnir_lib/bootstrap/scenario/mod.rs
@@ -24,7 +24,7 @@ pub fn copy_initial_storage_if_used(
             fs::remove_dir_all(&client_storage).expect("cannot remove existing client storage");
         }
         fs::create_dir(&client_storage).expect("cannot create client storage");
-        file::copy_folder(storage, &client_storage, true);
+        file::copy_folder(storage, &client_storage, true).unwrap()
     }
 }
 
diff --git a/testing/thor/src/fragment/export.rs b/testing/thor/src/fragment/export.rs
index caad9b67b8..b95ec19742 100644
--- a/testing/thor/src/fragment/export.rs
+++ b/testing/thor/src/fragment/export.rs
@@ -60,7 +60,7 @@ impl FragmentExporter {
                     .ends_with(".fragment")
             })
             .map(|path| {
-                let content = jortestkit::prelude::read_file(path);
+                let content = jortestkit::prelude::read_file(path).unwrap();
                 let bytes = hex::decode(content.trim()).unwrap();
                 Ok(bytes)
             })
diff --git a/testing/thor/src/wallet/mod.rs b/testing/thor/src/wallet/mod.rs
index 43af4ec691..ab792e6429 100644
--- a/testing/thor/src/wallet/mod.rs
+++ b/testing/thor/src/wallet/mod.rs
@@ -93,7 +93,7 @@ impl Wallet {
         spending_counter: Option<SpendingCounter>,
         discrimination: Discrimination,
     ) -> Wallet {
-        let bech32_str = jortestkit::file::read_file(secret_key_file);
+        let bech32_str = jortestkit::file::read_file(secret_key_file).unwrap();
         Wallet::Account(account::Wallet::from_existing_account(
             &bech32_str,
             spending_counter.map(Into::into),